Lens marker



Nov. 2, 1937. J. L. BRIENNER LENS MARKER Filed April 7, 1957 him,

Patented Nov. 2, 1937 UNITED STATES LENS MARKER Jack L. Brenner, Utica, N. Y., assignor to Shuron Optical Company, Inc.,'Geneva, N. Y., a corporation of New York Application April 7, 1937, Serial No. 135,537

6 Claims.

My invention relates to a lens marker and I declare the following to be a full, clear, concise and exact description thereof suflicient to enable anyone skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawing in which like reference characters refer to like parts throughout the specification.

The object of the invention is to produce a device that can be used in reproducing letters, line or other indicia on a lens. The problem presents some difficulties by reason of the curvature, either convex or concave surface of the lens.

This difliculty is solved in the present invention by providing a yielding surface that will conform to the curvature of the lens when pressed thereagainst.

Furthermore, in order to hold this yielding surface rigid while applying ink to its upper surface, the invention contemplates a spring depressed plate which can be moved easily up against said spring pressure under said yielding surface when it is necessary to ink the same as above mentioned.

The object will be understood by referring to the drawing, in which Fig. 1 is a perspective view of the device.

Fig. 2 is a central vertical section taken on the line 2, 2 of Fig. 1, parts being shown in full.

rubber band employed.

, Referring more particularly to the drawing, the device embodies a standard or casing I having an open countersunk recess 2 without end enclosures. The outer lateral sides of the upper portion of standard I are curved at 3 as clearly shown in Figs. 1 and 2.

A removable rubber band 4 is stretched over these curved surfaces 3, 3 and across recess 2, whereby its intermediate portion 6 is suspended in a taut manner. Cylindrical enlargements 1, l are formed integral with the ends of rubber band 4. Said enlargements I, I fit into correspondingly shaped cylindrical open recesses 8, 8 made in curved sides 3, 3. Said band 4 is assembled by pushing cylindrical enlargements I, I, laterally into recesses 8, 8 from either end.

A gauge line is formed on rubber band 4 by molding thereto a raised ridge Ill. Instead of a line, letters or other indicia may be formed on the upper surface of said band 4.

The means for supporting the intermediate portion 6 of rubber band 4 when applying ink to 55 its upper surface embodies a plate II which is Fig. 3 is a detail view showing a perspective of a mounted to standard 1 within recess 2 in such manner as to be disposed below rubber band 4.

The means for raising plate H into contact with the lower surface of band 4 as shown in dotted linesin Fig. 2 contemplates movable levers l5, 15. Each of said levers l5, I5 has an extended end I6 that rests under the depending blockpart ll of plate ll. Moreover, each of the movable levers i5, i5 is pivoted at Hi to an arbor projecting through the sides 3, 3 of standard I.

Suitable recesses 20, 20 are provided in sides 3, 3 whereby to allow for the swinging movement of levers l5, [5 from full to dotted line position illustrated in Fig. 2.

The means for holding plate ll normally down on surface 2| embodies a coiled spring 22 surrounding depending shaft 23 that is secured or made integral with block part ll of plate II. Coiled spring 22 occupies a recess 24 made in the lower part 25 of standard I. It presses at its upper end against shoulder 26 of part and at its lower end against the surface of nut 21 screw mounted to the lower free end of shaft 23.

In operation band 4 is slipped in place by pushing enlarged cylindrical ends 1, 1 within open 25 recesses 8, 8 from either open end. The operator will then grasp between his forefinger and thumb standard I at the location of movable levers l5, l5 whereupon they will move with the pressure of said forefinger and thumb into dotted line po- 30 sition, illustrated in Fig. 2. This actuation of levers l5, l5 will move plate H upwards against the tension of coiled spring 22, into dotted line position illustrated in Fig. 2 contiguous with the under surface of band 4, whereupon the upper surface of band 4 can be pushed against an ink pad thereby receiving ink thereon. Afterwards the finger and thumb will be relaxed and plate I I return to normal position illustrated in full lines in Figs. 1 and 2. The lens 30 is pushed downward against the yielding inked surface of band 4, whereby said band 4 will conform to the curved surface of lens 30 and cause a straight line as It] or other indicia, depending on the molding of the surface of band 4, on lens 30. The above cycle of operations will be repeated as often as it is necessary to mark a lens 30.

Having thus described my invention what I claim as new and desire to secure by Letters Patcut is as follows:

1. In a lens marker, a standard, a rubber band mounted to said standard, another member mounted within said standard for supporting said rubber band when inking the same and levers for 66 moving said supporting member in contact with said rubber band.

2. In a lens marker, a standard, a removable rubber band mounted to the same, a spring pressed movable plate mounted to said standard, whereby to support said rubber band when inking the same and means to aid in moving said last named member.

3. In a lens marker, a standard, a removable band mounted on said standard, a spring pressed plate movably mounted in said standard, whereby to contact with said rubber band to hold the same under given conditions and lever members to aid in contacting said movable plate.

4. In a lens marker, a standard, a rubber band supported by said standard, a recess formed in said standard below a portion of said rubber band, whereby to allow said rubber band to yield therein, a spring pressed member movably mounted in said standard to hold said rubber band in given position, and lever means to aid in moving said supporting member.

5. In a lens marker, a standard having a recess, a rubber band supported by said standard across said recess, whereby to allow said rubber band to yield into said recess, a plate movably mounted in said standard, a spring for holding said plate in predetermined position and lever members for moving said plate against the tension of said spring into contact with said rubber band.

6. In a lens marker, a standard having a recess, a removable rubber band supported by said standard across said recess, whereby to allow said rubber band to yield within said recess, a plate movably mounted in said standard, a depending shaft supported by said plate, a spring surrounding said shaft, whereby to hold said plate in predetermined position and lever members pivotally mounted in said standard, whereby to move said plate against the tension of said spring into contact with said rubber band.

JACK L. BRENNER. 

